I'll post a summary of this trial in the Aminopyralid groups 2011 research discission.
These shots are showing the first six sunflowers: 3 in potting soil and 3 in 1 part smit's compost and 3 parts potting soil. Notice the viens on the first leaves. The effect of Aminopyralid caused elongation, asymetrical formation of the viens, and enlargement of the viens as well.
This is oyster mycelium and the control group. They went under the 14 hr light cyclce 2 days after the first group
Red ( cup or tape ) does indicate contamination.